Relatives of the Lockerbie bombing victims gathered at Arlington National Cemetery, Virginia, to mark the 15th anniversary of the terror attack.

Pan Am Flight 103, from London to New York, blew up over Lockerbie, Scotland, on December 21, 1988. All 259 people on board and 11 people on the ground were killed.

A Libyan intelligence officer was convicted in 2001 of bombing Flight 103.

The anniversary comes two days after Libya announced it would renounce its weapons of mass destruction programme.

A Libyan delegation met the director general of the International Atomic Energy Agency in Vienna on Saturday and agreed to unannounced inspections of sites at which it had sought to develop nuclear arms technology.